+**Uniformitarianism** proposes that the natural processes observed today, like erosion or volcanic activity, have always operated similarly through Earth's history. This fundamental concept, often summarized as "the present is the key to the past," is vital for understanding [Geology](/wiki/geology) and [Paleontology](/wiki/paleontology).
+## See also
+- [Catastrophism](/wiki/catastrophism)
+- [Deep Time](/wiki/deep_time)
+- [Earth Science](/wiki/earth_science)
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